ASTROSAT CZTI

Data Quality Report

Orbit 28336

Creation date: 2024-06-27T19:50:38.465393
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_116T01_9000004082_28336cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28336cztM0_level2_quad_clean.evt
Size (bytes)589,875,84099,512,640
Size562.5 MB 94.9 MB
Events in quadrant A3,417,125653,103
Events in quadrant B3,538,946660,561
Events in quadrant C3,414,032626,606
Events in quadrant D7,014,394580,011

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146740
B0149220
C0147130
D0256410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7090891.255289%
B70901091.537377%
C70901391.960508%
D70916248.799887%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 8600 7091 0 0 0.00% 0.00%
B 8600 7090 0 0 0.00% 0.00%
C 8600 7090 0 0 0.00% 0.00%
D 8601 7093 486 486 5.65% 6.85%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 12074 62.59 883 864 179.1
A 3 137 8840 44.53 883 864 179.1
A 0 226 7589 37.55 883 864 179.1
B 4 200 40131 230.11 874 853 170.7
B 10 245 23659 133.61 874 853 170.7
B 12 111 21535 121.17 874 853 170.7
C 14 238 132963 664.34 838 842 198.9
C 3 233 14360 67.97 838 842 198.9
C 13 61 5699 24.42 838 842 198.9
D 1 52 2023018 10312.31 822 799 196.1
D 8 195 1801220 9181.25 822 799 196.1
D 2 250 39479 197.25 822 799 196.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter